principal quantum number
the nonnegative, integral quantum number that defines the stationary orbits in the Bohr model of the atom.
Quantum And Other Trending Words On Dictionary.comRead more in this article about some frequently asked questions and fun facts related to our definitions.
Principal vs. PrincipleIs the head of a school called a principal or a principle? These two words are frustratingly similar, leaving even the most experienced English speakers to second-guess which word means what. Today, we’ll discuss the distinct meanings between these easy-to-confuse terms and a little trick to help differentiate between your principals and your principles. What is a principal? A principal is “a chief or head, …
Origin of principal quantum number
First recorded in 1920–25
Also called total quantum number.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019